http://livedocs.adobe.com/ Macromedia LiveDocs - online documentation with user feedback. Copyright 2009, Macromedia, Inc. 2009-11-25T16:07:38 en-us http://livedocs.adobe.com/coldfusion/7/htmldocs/00000520.htm#32928 Actually the IsArray() doesn't work either. I recommend using the cfparam tag. See the following article:<br /><br />http://coldfusion.sys-con.com/read/41900.htm spdygnlz 0 0 2005-05-03T11:05:26 http://livedocs.adobe.com/coldfusion/7/htmldocs/00000520.htm#28837 The IsArray function will do just what your looking for.<br />IsArray("Myarray[2]") will retrun true if this array and index are valid. See the IsArray reference in this guide dfSDL JFSD:LIcfS 0 0 2005-03-02T09:57:14 http://livedocs.adobe.com/coldfusion/7/htmldocs/00000520.htm#28367 IsDefined does not work for an array. It is possible to set certain positions in an array and not others. Like spot 1,2,4 but not 3.<br /><br />IsDefined ( "array[3]" ) does not work. <br /><br />Currently there is a function on cflib.org that pulls this off by using a cftry cfcatch statement to catch coldfusion.runtime.undefinedelement or something like that.<br /><br />I don't see an array function that can determine if an array element has been defined. It is rare that we use an array in such a manner, but it is useful sometimes. twillerror 0 0 2005-02-22T10:09:03